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I Is rotational Work the same as linear Work?

  1. Nov 25, 2016 #1
    Linear work is F*D and rotation is 1/2Iω2, but if a problem as me rotational energy (Rotation worl = KE?) of a wheel and I have the linear work, can I just set Wrotation=Wlinear?
     
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  3. Nov 25, 2016 #2

    marcusl

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    Science Advisor
    Gold Member

    Please correct the errors in your post, your question is not understandable as written.
     
  4. Nov 25, 2016 #3
    If I have Work1=F*D, can I use that answer to be equal to W2(=1/2Iω2)?
     
  5. Nov 25, 2016 #4

    russ_watters

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    Staff: Mentor

    Linear and rotational work can be equated, yes.
     
  6. Nov 25, 2016 #5
    Thanks. Now is it possible to find angular momentum from just work and force? no radius, speed, nor mass are given. If so, how?
     
  7. Nov 25, 2016 #6

    russ_watters

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    Staff: Mentor

    No, you need at least radius or angular speed.
     
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